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- W3095133072 abstract "Lead free (0.94-x)Na0.5Bi0.5TiO3–0.06BaTiO3-xK0.5Na0.5NbO3 ceramics are under the spotlight owing to their multifunctional nature. We have systematically investigated the microstructural, structural, dielectric, piezoelectric and energy storage properties of the system in the range 0 ≤ x ≤ 0.08. There is a systematic reduction in grain size with increasing K0.5Na0.5NbO3(KNN) concentration. The enhancement in disorder with K0.5Na0.5NbO3(KNN) doping is evident from the increase in slope of the dielectric dispersion plots. The unpoled compositions have a cubic like structure in the whole range i.e. from x = 0 to x = 0.08. However, the application of electric field(poling) results in a structural transformation to lower symmetry upto x = 0.04. Beyond that the disorder dominates over the applied electric field and the structure is cubic like even in the poled state. The energy storage density increases from 0.08 J/cm3 for x = 0 to 1.19 J/cm3 for x = 0.05 and saturates thereafter. Discharge efficiency also follows a similar trend. The piezoresponse decreases with KNN doping from 151 pC/N for x = 0 to 4 pC/N for x = 0.08. It is observed that energy storage density and piezoresponse are complimentary properties which increase at the expense of each other." @default.
- W3095133072 created "2020-11-09" @default.
- W3095133072 creator A5015373130 @default.
- W3095133072 creator A5023304622 @default.
- W3095133072 creator A5024400345 @default.
- W3095133072 creator A5059041807 @default.
- W3095133072 creator A5066237755 @default.
- W3095133072 creator A5069840010 @default.
- W3095133072 date "2020-11-02" @default.
- W3095133072 modified "2023-09-24" @default.
- W3095133072 title "Microstructural, structural, dielectric, piezoelectric and energy storage properties of 0.2 wt% MnO2 doped (0.94-x)Na0.5Bi0.5TiO3–0.06BaTiO3-xK0.5Na0.5NbO3 ceramics (0 ≤ x ≤ 0.08)" @default.
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